When I homebrewed my Wii U a month ago, I was able to download stuff on my USB. Offical/Homebrew ways to download apps. A few days ago, I was trying to download a WUP file on my Wii U on my USB and like 20-50% through, it CRASHED my Wii U. I dont know why this happens, and when I download on the main storage its fine... so im confused. I was even trying to move games from my main to my usb but it didnt crash my wii u, it was just kept loading forever. Can someone help?